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What is the use of fuse in domestic electric circuits ? How is its role different from the role of a green coloured wire given in domestic electric circuits ? What will happen if an electrician installs a fuse with higher-rated value than prescribed for a given electric circuit ?
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$\bullet$ Fuse - It is used to protect the appliances from overloading (Short
circuiting). (1)
$\bullet$ Green colour wire – Earth wire – Provides a low resistance
conducting path for current to flow to the earth, if there is any
leakage of current to metallic body of appliance, hence prevents
from electric shock. (1)
$\bullet$ Fuse will not be able to protect the circuit during overloading (1)
circuiting). (1)
$\bullet$ Green colour wire – Earth wire – Provides a low resistance
conducting path for current to flow to the earth, if there is any
leakage of current to metallic body of appliance, hence prevents
from electric shock. (1)
$\bullet$ Fuse will not be able to protect the circuit during overloading (1)